Model: DCF-650W — $99 MSRP
D-Link’s Wireless Compact Flash adapter is a PRISM II based 802.11b
wireless adapter in a CompactFlash (CF) Type II format. Many PocketPC
users have been eagerly awaiting 802.11b adapters in this format, and although
this product isn’t perfect, it will make many people plenty happy.
– Relatively low cost
– Relatively low power draw
Cons:
– Larger than you might like
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Product Stats
View a summary of the D-Link Wireless Compact Flash Card’s
wireless capabilities.
Installation
and Features
I used a Compaq iPAQ 3150 PocketPC with Compact Flash sleeve to
put the adapter through its paces. The D-Link manual says that the adapter is
compatible with the following products:
Pocket PC
Compaq iPAQ (StrongARM)
Casio E115 and E125 (MIPS R4000)
Handheld PC (HPC)
Sharp Telios (MIPS R3000)
HP Jornada 720 (StrongARM)
Intel Pentium/X86
Presumably, the adapter would work with other machines using StrongARM
or MIPS processors, but note that SH3-based HP Jornada users won’t be
able to use this product.
The CF adapter is 3.25 inches tall, with 1.5 inches of
When I inserted the adapter into my iPAQ’s CF sleeve, |
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Installation consisted of popping the Installation CD into the drive of a computer
that was running Microsoft’s Active Sync and connected to the iPAQ, clicking
the "Install Drivers" icon on the autorun screen that popped up, and
following the clear instructions in the printed Quick Install Guide.
Once you’re installed, you’ll open the Client Utility (which is located
in the Start > Settings > System screen) to check and configure the adapter,
so let’s step through each of its screens to see what it lets you do.
The Configure screen gives you access to all settings except Tip: See |
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The Info screen tells you pretty much everything about the status You get a readily available indication of link status |
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The inclusion of a ping utility on the Link tab is a thoughtful On the plus, side, however, note that this tab tells you The WEP tab is clearly laid out and easy to use. Finally, the About tab shows driver and utility |
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Performance
Since netIQ doesn’t have an endpoint for WinCE, I had to come
up with other
methods to test the adapter. Here are the results:
Test Conditions: – WEP encryption: Disabled |
Firmware/Driver Versions: AP f/w: 1.4f4 |
Test Description |
Transfer Rate [1Mbyte data size] |
Response Time [10 iterations 100byte data size] |
AP to Client – Condition 1 |
1.2 [No WEP] |
4 (avg) |
AP to Client – Condition 2 |
1.2 |
4 (avg) |
AP to Client – Condition 3 |
1.2 |
4 (avg) |
AP to Client – Condition 4 |
1.2 |
4 (avg) |
Comments: I was surprised at the relatively low Transfer Rate of the
adapter, and suspect that something in my measurement method may be limiting
what I’m measuring. I found no difference in rate with or without WEP,
but at the low measured rate, I’d certainly hope that to be the case!
Range was pretty good, although I found it difficult to use the Client Utility
signal level and quality indicators unless I concentrated on keeping the iPAQ
still. There was no question when I moved out of network range, however,
since the blinking Link LED made it very clear.
The measurements aside, I found browsing a local web server to be plenty
responsive. I didn’t do any Internet based testing, since my dialup net connection
would be the limiting factor.
Battery Life
One of the key advantages that 802.11b CF cards are supposed to
have over their PC card cousins is lower power draw. Compaq takes one
approach to the problem, including a separate battery in their PC card sleeve
to provide the extra juice needed by PC card devices. But Compaq doesn’t
include a battery in the CF sleeve, putting a CF-sleeve-equipped iPAQ on par
with PocketPCs with built-in CF slots.
My battery life test was simple. I started a CNET radio
stream with the Windows Media Player 7.1 at moderate volume with a fully charged
battery and let it run. (Since the monochrome iPAQ doesn’t rely on a screen
back or sidelight, I didn’t have to worry about shutting one off!). I
was able to get 2 hours and 10 minutes of play before I got a low battery
shutdown message and had to plug back in. At some point I’ll get a CF/PC
card adapter and try the same test in the iPAQ with the PC card sleeve and its
extra battery, and update this review with the results.
Summary
As I said at the top of the review, 802.11b CF cards should quickly
become a fairly hot item, and the D-Link CF Wireless adapter should be one of
the hottest. D-Link is taking an aggressive pricing strategy, with on-line
pricing at the time of this review running mostly between $126 to $150
(compared to $180 for Symbol’s Wireless Networker). Supply will
probably be tight at first (product will probably not be available until mid
September) and keep prices up, but given that essentially the same card is already
popping up under different not-so-famous names, I’d expect prices to come down
over the next few months as volume production comes on line.
A PocketPC by itself is a useful little gadget, but some of the
real fun begins when you have a network connection, given the multimedia capabilities
of the PocketPC platform. With the D-Link CF Wireless adapter, you can
tap into your LAN without being wired down, and isn’t that what mobile computing
is all about?
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